Roller-skate.



R. SCHWARZ.

ROLLER SKATE.

APPLIoATIoN FILED DB0. zz, 1909.

1,050,490 Pcented Jan.14,1913.

nENHoLn SCHWARZ, or, NEW YORK, nl Y.

:ROLLER-SKATE.

spcification of Letters Patent.

Patented J an. 14, 1913.

Application led December 22, 1909. Serial No. 534,466.

To all whom it may concern:

Be it known that I, REINHOLD SCHWARZ, a citizen of the United States, and a resident of New York, in the county and State of New York, have invented certain new aud useful Improvements inl Roller-Skates, of which the following isa. specification.

This,` invention has reference to improvements in roller-skates such as are used on the ground or a floor or a prepared surface. The roller-skates heretofore employed have usually two pairs of rollers and accordingly four Contact points on the ground. It is the purpose of the presentI invention to produce novel roller-skates presenting various advantages. By the use of my novel roller-skates slipping during skating is avoided. This has been accomplished by devising the skates after carefully studying all possible movements of the footof the skater when starting, moving and stopping. The fore part of the foot rests on the skate above two pairs of rollers of which the first pair is stationarilyT mounted while the second pair is movable to the right and left on a. turning point. located in the front part of the skate so that by a `lslight motion of the fore foot small and large curves may* be made. There is provided a third pair of rollers which however are normally slightly above the ground so thatsame are inoperative when va curve is made. As far as described the skates act as common skates with two pairs of rollers but without steering mechanism and brake. A brake is pro-A vided in the rear part of the skate above the third or rear pair of rollers and is actuated by the skater by allowing the full weight of the body to press down on the rear rollers by straightening the knees. When the skater wants to go forward he `will involuntarily raise the heels whereby the brake is released. By straightening the knees again and'allowing the weight of the body to rest on the rear parts of the skate i the brake is again actuated. Thus the action of the brake is automatic'and when actuated there are six contact points on the ground. Means'are provided on the two front pairs of rollers' to retain their shafts always parallel to the-ground whereby the largest cont-act surfaces with the ground are obtained.

In addition to these main objects it has been sought to reduce the cost of production by simplicity in construction and care hasbeen taken to produce a neat and desirable scale a bracket for springs and axle shafts.

supported thereby.

Similar characters of reference denote like parts in all figures. i

` Referring to the drawing a represents the foot plate to which the frontl rollers are secured. The heel plate a1 is connected 'to the foot plate by means of a hinge b and there-- Leather straps or 'clamps fore is movable. are provided on theskate for securing same to the foot. in the usual manner which may be of any approved construction. The foot plate a is strengthened at the bottom by a rib a3 which extends rearwardly and gradumiddle wheel bracket and forms a spring seating Z2 for a spring, to -be described far.h

-ther down. The frontpair ot' rollers 1' is mounted in a bearing or bracket4v c which is secured to the foot platea. The middle pair of rollers is secured to a plate a? below the foot plate a and hinged thereto by a hinge g.A Each of the brackets of the rollers is provided with two springs e arranged as shown in Figs. .1 and 2. -The springs are on the outside of the rollers and they are set under an angle of 45 to the. ground line in an opposite direction and rectangular to each other. Each spring is located in a housing e1 into a bracket c. The shafts f of the rollers are introduced through a slot c1 of the bracket c. The slot in each bracket extends inthe vsame direction as itsaccomally diverges from above the axis of the rib, a pair of rear rollers supported in the Signed at New York, N. Y:,` this 21st day brackets, and a brake located below the pivof December, 1909.

oted heel plate adapted to be operated by HW the heel of the skater to engage the rollers, REINHOLD SC ABZ' 5 said brake being disengagednormally from Witnesses:

the rollers by the spring in the spring CORINNE MYERS.,A casing. THOMAS DONNELLAN. 

